Bathtub brush



FIG. 1 is a front, top and right-side perspective view of a bathtub headshowing my new design;

FIG. 2 is a rear, bottom and left-side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a front, top and right-side perspective view thereof,illustrating how the claimed design may appear while in use.

The broken lines in the figures illustrate portions of the bathtub brushthat form no part of the claimed design. The broken-line showing of abrush handle in FIG. 9 depicts environmental structure that forms nopart of the claimed design.

CLAIM The ornamental design for a bathtub brush, as shown and described.